Arvak was the Head Coach at Southern High School from 2006 to 2020. He has been with M&D since 2002 and spent years coaching M&D 2006 Black, M&D 2011 Black and M&D 2017 Black to numerous championships. Arvak has been coaching girls’ lacrosse for the past 15 years and coached boys’ JV lacrosse at Glenelg High School for five years prior to his start in girls’ lacrosse. Arvak is also the Commissioner for SCYA Rec club in Anne Arundel County. He has also specifically coached goalies for the past 20 years, with players going on to play at Hopkins, Navy, James Madison, Duquesne, Kennesaw State and more.